INVESTIGADORES
TRAVAINI Alejandro
artículos
Título:
Effects of sex-associated competitive asymmetries on foraging group structure and despotic distribution in Andean condors
Autor/es:
JOSÉ ANTONIO DONÁZAR; ALEJANDRO TRAVAINI; OLGA CEBALLOS; ALEJANDRO RODRIGUEZ; MIGUEL DELIBES; FERNANDO HIRALDO
Revista:
BEHAVIORAL ECOLOGY AND SOCIOBIOLOGY
Editorial:
SPRINGER
Referencias:
Año: 1998 vol. 45 p. 55 - 65
ISSN:
0340-5443
Resumen:
Phenotype-limited interference models assume competitive asymmetries among conspecifics and unequal sharing of resources. Their main prediction is a correlation between dominance status and patch quality: dominant individuals should preferentially exploit better-quality habitats. We tested assumptions and predictions of the phenotype-limited interference model in Andean condors (Vultur gryphus), a New World vulture with strong sexual size dimorphism (males are 30-40% heavier than females).